<template>
  <div class="login-header">
    <div class="login-box">
      <div class="avatar-box">
        <img src="../assets/logo.png" alt />
      </div>
      <!-- 表单区域 -->
      <el-form :model="loginForm" ref="loginFormRef" :rules="rules" label-width="0px" class="login-form">
        <!-- 用户名 -->
        <el-form-item  prop="username">
          <el-input v-model="loginForm.username" prefix-icon="el-icon-user-solid"></el-input>
        </el-form-item  >
          <!--  密码 -->
        <el-form-item prop="password" >
          <el-input v-model="loginForm.password" prefix-icon="el-icon-s-goods" type="password"></el-input>
        </el-form-item>
        <!-- 提交 -->
        <el-form-item class="btns">
            <el-button type="primary" @click="login">登录</el-button>
            <el-button type="info" @click="resetloginForm">重置</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>
<script>
export default {
 data() {
   return {
     //这是登录表单的数据绑定对象
     loginForm: {
       username:'admin',
       password:'123456'
     },
     rules: {
          username: [
            { required: true, message: '请输入用户名', trigger: 'blur' },
            { min: 3, max: 6, message: '长度在 3 到 6 个字符', trigger: 'blur' }
          ],
         password: [
            { required: true, message: '请输入密码', trigger: 'blur' },
            { min: 3, max: 12, message: '长度在 3 到 12个字符', trigger: 'blur' }
            ]
           }
          }
         },
 methods: {
  //点击重置按钮重置表单验证
  resetloginForm() {
   this.$refs.loginFormRef.resetFields();
   },
   login() {
     this.$refs.loginFormRef.validate(async valid=>{
       if(!valid) return;
       const {data:res} = await this.$http.post("login",this.loginForm );
       if (res.meta.status!==200) {
        return this.$message.error('登录失败')
       } else {
         console.log(res);
         this.$message.success("登录成功");
         window.sessionStorage.setItem("token",res.data.token);
         this.$router.push('/home')
       }
     });
   }
  }  
};



</script>
<style lang="less" scoped>
.login-header {
  background-color: #2b4b6b;
  width: 100%;
  height: 100%;
}
.login-box {
  background-color: #fff;
  height: 300px;
  width: 450px;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  border-radius: 3px;
  .avatar-box {
    width: 130px;
    height: 130px;
    border: 1px solid #eee;
    border-radius: 50%;
    padding: 10px;
    box-shadow: 0 0 10px #ddd;
    position: absolute;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: #fff;
    img {
      width: 100%;
      height: 100%;
      left: 50%;
      border-radius: 50%;
      background-color: #eee;
    }
  }
  .btns{
    display: flex;
    justify-content: flex-end;
  }
  .login-form{
    position: absolute;
    bottom: 0;
    width: 100%;
    padding: 20px;
    box-sizing: border-box;
  }
}
</style>